Outcomes of pneumatic dilatation and Heller's myotomy for achalasia in England between 2005 and 2016.

The efficacy of PD for achalasia appears to be greater than HM over 10 years. There was no mortality associated with HM, but 1.9% of subjects died within 30 days of PD. Mortality was associated with increasing age, comorbidity, previous HM and repeat PD.